1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_DEX_VERIFICATION_RESULTS_H_ 18 #define ART_COMPILER_DEX_VERIFICATION_RESULTS_H_ 19 20 #include <stdint.h> 21 #include <set> 22 23 #include "base/dchecked_vector.h" 24 #include "base/macros.h" 25 #include "base/mutex.h" 26 #include "base/safe_map.h" 27 #include "dex/class_reference.h" 28 #include "dex/method_reference.h" 29 #include "utils/atomic_dex_ref_map.h" 30 31 namespace art { 32 33 namespace verifier { 34 class MethodVerifier; 35 class VerifierDepsTest; 36 } // namespace verifier 37 38 class CompilerOptions; 39 class VerifiedMethod; 40 41 // Used by CompilerCallbacks to track verification information from the Runtime. 42 class VerificationResults { 43 public: 44 explicit VerificationResults(const CompilerOptions* compiler_options); 45 ~VerificationResults(); 46 47 void ProcessVerifiedMethod(verifier::MethodVerifier* method_verifier) 48 REQUIRES_SHARED(Locks::mutator_lock_) 49 REQUIRES(!verified_methods_lock_); 50 51 void CreateVerifiedMethodFor(MethodReference ref) 52 REQUIRES(!verified_methods_lock_); 53 54 const VerifiedMethod* GetVerifiedMethod(MethodReference ref) const 55 REQUIRES(!verified_methods_lock_); 56 57 void AddRejectedClass(ClassReference ref) REQUIRES(!rejected_classes_lock_); 58 bool IsClassRejected(ClassReference ref) const REQUIRES(!rejected_classes_lock_); 59 60 bool IsCandidateForCompilation(MethodReference& method_ref, const uint32_t access_flags) const; 61 62 // Add a dex file to enable using the atomic map. 63 void AddDexFile(const DexFile* dex_file) REQUIRES(!verified_methods_lock_); 64 65 private: 66 // Verified methods. The method array is fixed to avoid needing a lock to extend it. 67 using AtomicMap = AtomicDexRefMap<MethodReference, const VerifiedMethod*>; 68 using VerifiedMethodMap = SafeMap<MethodReference, const VerifiedMethod*>; 69 70 VerifiedMethodMap verified_methods_ GUARDED_BY(verified_methods_lock_); 71 const CompilerOptions* const compiler_options_; 72 73 // Dex2oat can add dex files to atomic_verified_methods_ to avoid locking when calling 74 // GetVerifiedMethod. 75 AtomicMap atomic_verified_methods_; 76 77 // TODO: External locking during CompilerDriver::PreCompile(), no locking during compilation. 78 mutable ReaderWriterMutex verified_methods_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 79 80 // Rejected classes. 81 // TODO: External locking during CompilerDriver::PreCompile(), no locking during compilation. 82 mutable ReaderWriterMutex rejected_classes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 83 std::set<ClassReference> rejected_classes_ GUARDED_BY(rejected_classes_lock_); 84 85 friend class verifier::VerifierDepsTest; 86 }; 87 88 } // namespace art 89 90 #endif // ART_COMPILER_DEX_VERIFICATION_RESULTS_H_ 91